As a hardsurface guy I enjoyed working on this corpus assault rifle particularly.
Concept by Marco Hasmann!

If your interested to learn the workflow behind creating a weapon like this, there's a tutorial for it on my gumroad page
https://chamferzone.gumroad.com/l/SwordAndMace_BundleEdition

All tutorials visible on https://chamferzone.gumroad.com

You can even watch the Mace Tutorial modeling and sculpting part for free on youtube.com/chamferzone

Come join us on the ChamferZone Discord where both pros and beginners talk 3D and learn together.
https://discord.gg/s98PbNk7pM